Epson Stylus C82 - Page 20

EPSON Stylus C82 Revision A
OPERATING PRINCIPLES Electrical Circuit Operating Principles 20
Table 2-5. Block diagram for the C486 MAIN Board
E01A38CA
ASIC (IC10)
ADDRESS
ROM
(IC1)
D-RAM
(IC5)
EEPROM
(IC6)
Transceiver
(IC3)
CN1
Parallel
I/F
USB
CN3
Reset regulator
(IC4)
Head
driver 1
(IC9)
+42V
CN8
CN9
Printhead
Q2
Q3
Motor driver
(IC8)
CN14
CN13
CR motor
PF motor
CN12
CN4
CN19
CN20
PF Encoder
PE sensor
PS Board
Panel Board
F1
F2
DATA
DATA
DATA
ADDRESS
DATA
D0 (#164), D1 (#169)
D2 (#174), D3 (#4)
D4 (#5), D5 (#176)
D6 (#171), D7 (#166)
D8 (#167), D9 (#172)
D10 (#1), D11 (#6)
D12 (#2), D13 (#173)
D14 (#168), D15 (#163)
MRES (#129)
/NMI (#131)
/RESET (#130)
/HWFLR (#36)
HWSDATA (#39)
HWSCLK (#30)
/HWSLAT (#31)
HWCLK1 (#33)
HWCLK2 (#34)
HWA0 (#40)
to
HWA4 (#44)
RST_DCMCU (#89)
PWM1_MCU (#82)
PWM2_MCU (#87)
DATA1_MCU (#81)
CLK1_MCU (#83)
DATA2_MCU (#86)
CLK2_MCU (#88)
ENCA_PFDCU (#54)
ENCB_PFDCU (#55)
SWA1 (#72)
PSC0 (#69)
SW0 (#57) to SW2 (#59)
LED2 (#66) to LED0 (#68)
DP (#98)
DM (#99)
USBLH (#95)
ECS (#128)
ECK (#127)
EDO (#126)
EDI (#125)
A1 (#154), A2 (#152)
A3 (#149), A4 (#147)
A5 (#144), A6 (#141)
A7 (#139), A8 (#136)
A9 (#133), A10 (#135)
A11 (#138), A12 (#140)
A13 (#143), A14 (#146)
A15 (#148), A16 (#151)
A17 (#153), A18 (#134)
A19 (#61)
DATA0 (#115)
to
DATA4 (#111)
DATA5 (#109)
to
DATA7 (#107)
/ACK (#122), BUSY (#121)
PE (#119), SLCT (#118)
/ERR (#117)
/STB (#104), /INIT (#103)
/AFXT (#102),/SLIN (#101)
LH (#106)
DIR (#124)
HD (#123)